13160730640 has 40 divisors (see below), whose sum is σ = 31929081408. Its totient is φ = 5035409280.

The previous prime is 13160730631. The next prime is 13160730647. The reversal of 13160730640 is 4603706131.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (13160730647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3574446 + ... + 3578125.

Almost surely, 2^13160730640 is an apocalyptic number.

13160730640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13160730640 is an abundant number, since it is smaller than the sum of its proper divisors (18768350768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13160730640 is a wasteful number, since it uses less digits than its factorization.

13160730640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7152607 (or 7152601 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 13160730640 in words is "thirteen billion, one hundred sixty million, seven hundred thirty thousand, six hundred forty".